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SIM Application Toolkit ( STK) is a standard of the GSM system which enables the subscriber identity module (SIM card) to initiate actions which can be used for various value-added services. [1] Similar standards exist for other network and card systems, with the USIM Application Toolkit (USAT) for USIMs used by newer-generation networks being an example. A more general name for this class of ...
T-Mobile US, Inc., often shortened as T-Mobile, is an American wireless network operator headquartered in Bellevue, Washington, U.S. Its largest shareholder is multinational telecommunications company Deutsche Telekom AG, a German company headquartered in Bonn, Germany.
Microsoft Product Activation is a DRM technology used by Microsoft Corporation in several of its computer software programs, most notably its Windows operating system and its Office productivity suite. The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to install the program and the user's computer ...
Exchange ActiveSync (commonly known as EAS) is a proprietary protocol designed for the synchronization of email, contacts, calendar, tasks, and notes from a messaging server to a smartphone or other mobile devices. The protocol also provides mobile device management and policy controls. The protocol is based on XML. The mobile device communicates over HTTP or HTTPS .
The first BlackBerry device, the 850, was introduced in 1999 as a two-way pager in Munich, Germany. [10] BlackBerry was a solution devised by RIM for delivering e-mail over several different wireless networks. [11] The name BlackBerry was coined by the marketing company Lexicon Branding. The name was chosen out of about 40 potential names, because of the resemblance of the keyboard's buttons ...
Initially, the iPhone started from a conflict between Steve Jobs and his brother-in-law working at Microsoft, [6] then convinced by a French high-level engineer, [7] Jean-Marie Hullot, working for Apple France [8] to do so. The project within Apple Inc. for developing the iPhone began with a request in 2004 from CEO Steve Jobs to the company's hardware engineer Tony Fadell, software engineer ...
Unstructured Supplementary Service Data ( USSD ), sometimes referred to as " quick codes " or " feature codes ", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator 's computers. USSD can be used for WAP browsing, prepaid callback service, mobile-money services, location-based content services, menu-based information services, and as ...
iOS is a mobile operating system developed by Apple Inc. and was first released as iPhone OS in June 2007, coinciding with the launch of the first generation iPhone. [1] iPhone OS was renamed iOS following the release of the iPad, starting with iOS 4. [2] With iOS 13, Apple began offering a separate operating system, iPadOS, for the iPad. iOS is also the foundation of the newer audioOS and ...